public bool RemoveDian(GoPoint dian)
{
if (dian.Type != type_)
{
return(false);
}
int index = dian.Coord.GetIndex(size_);
if (!dianMap_.ContainsKey(index))
{
return(false);
}
// remove the block;
dian.Block = null;
dianMap_.Remove(index);
ClearQiOfBlock(dian.UP);
ClearQiOfBlock(dian.DOWN);
ClearQiOfBlock(dian.LEFT);
ClearQiOfBlock(dian.RIGHT);
if (DianNumber != 0)
{
CleanQi();
}
return(true);
}
private bool DetectNeighborBlock(GoPoint dian, GoPoint nextDian)
{
if (nextDian == null || nextDian.Type == GoPointType.EMPTY)
{
return(false);
}
else if (nextDian.Block == null || nextDian.Block.DianNumber == 0)
{
//Error need refresh
throw new Exception("ERROR: The Block of Zi is NULL or EMPTY");
}
else if (nextDian.Block.Type != dian.Type)
{
nextDian.Block.CleanQi();
return(false);
}
else if (dian.Block != nextDian.Block)
{
dian.Block.Merge(nextDian.Block);
return(true);
}
else
{
return(false);
}
}
public GoPoint GetPointByDirection(GoPoint dian, Direction direction)
{
int newRow = dian.Coord.Row;
int newCol = dian.Coord.Col;
switch (direction)
{
case Direction.UP:
newRow--;
break;
case Direction.DOWN:
newRow++;
break;
case Direction.LEFT:
newCol--;
break;
case Direction.RIGHT:
newCol++;
break;
}
return(layout_.GetPoint(new GoCoord(newRow, newCol)));
}
private void ClearQiOfBlock(GoPoint dian)
{
if (dian == null || dian.Block == null)
{
return;
}
dian.Block.CleanQi();
}
public void PushStep(GoStep step)
{
GoPoint point = OnAddChess(step.Coord, step.Type);
List <GoCoord> removedList = OnCheckCapture(point);
step.SetRemovedList(removedList);
steps_.Push(step);
OnChessChanged();
}
private void OnRemoveChess(GoPoint point)
{
if (point.Block != null && point.Block.DianNumber != 0)
{
GoBlock block = point.Block;
block.RemoveDian(point);
point.Type = GoPointType.EMPTY;
}
}
public int GetQi(int row, int col)
{
GoPoint point = GetPoint(row, col);
if (point != null && point.Type != GoPointType.EMPTY)
{
return(point.Qi);
}
return(-1);
}
private void ResetPoint()
{
for (int i = 0; i < SIZE; i++)
{
for (int j = 0; j < SIZE; j++)
{
GoPoint point = new GoPoint(new GoCoord(i, j), visitor_);
layout_[i * SIZE + j] = point;
}
}
}
// public bool SetDian(GoCoord coord, GoDianType type)
// {
//
// else if (dian.Type == type)
// {
// // no change
// return true;
// }
// else if (type == GoDianType.EMPTY)
// {
// // Remove Zi
// RemoveChess(dian);
// return true;
// }
// else if (dian.Type != GoDianType.EMPTY)
// {
// // if (!allowChangeZi_)
// // {
// // //Error need refresh
// // GoException.Throw("Cannot change chess, should remove it firstly");
// // }
// RemoveChess(dian);
// }
// dian.Type = type;
// dian.Block = new GoBlock(SIZE, dian);
// // if (autoTake_)
// // {
// if (dian.Qi == 0 && !CheckTiZi(dian))
// {
// RemoveChess(dian);
// return false;
// }
// else
// {
// CheckTiZi(dian);
// }
// /* }*/
//
// if (DianChanged != null)
// {
// DianChanged();
// }
//
// return true;
// }
public bool SetupPoint(GoCoord coord, GoPointType type)
{
GoPoint point = GetPoint(coord);
if (point != null && point.Type != type)
{
OnRemoveChess(point);
OnAddChess(coord, type);
OnChessChanged();
}
return(true);
}
private int CalculateCurrentQi(GoPoint dian)
{
if (dian == null)
{
return(0);
}
dian.SetStatusAsVisited();
visitedList_.Add(dian);
int qi = 0;
qi += CalculateNextQi(dian, dian.UP);
qi += CalculateNextQi(dian, dian.DOWN);
qi += CalculateNextQi(dian, dian.LEFT);
qi += CalculateNextQi(dian, dian.RIGHT);
return(qi);
}
private void CalculateQi()
{
if (dianMap_.Count == 0)
{
throw new Exception("ERROR: Calculate Qi from a empty block");
}
if (qi_ != -1)
{
return;
}
GoPoint dian = dianMap_.Values.First();
qi_ = CalculateCurrentQi(dian);
foreach (GoPoint visited in visitedList_)
{
visited.ResetStatus();
}
visitedList_.Clear();
}
public GoBlock(int size, GoPoint dian)
{
size_ = size;
type_ = dian.Type;
ID = ++mainid;
if (dian.Block != null)
{
GoException.Throw("Attempt add a Dian to double Block");
}
int index = dian.Coord.GetIndex(size_);
dianMap_.Add(index, dian);
dian.Block = this;
CleanQi();
DetectNeighborBlock(dian, dian.UP);
DetectNeighborBlock(dian, dian.DOWN);
DetectNeighborBlock(dian, dian.LEFT);
DetectNeighborBlock(dian, dian.RIGHT);
}
private int CalculateNextQi(GoPoint dian, GoPoint newDian)
{
int qi = 0;
if (newDian == null || newDian.IsVisited())
{
return(0);
}
else if (newDian.Type == GoPointType.EMPTY)
{
newDian.SetStatusAsVisited();
visitedList_.Add(newDian);
qi += 1;
}
else if (newDian.Type == dian.Type)
{
qi += CalculateCurrentQi(newDian);
}
return(qi);
}
private GoPoint OnAddChess(GoCoord coord, GoPointType type)
{
GoPoint point = GetPoint(coord);
if (point == null)
{
GoException.Throw("The Coord is out of bounds");
}
else if (point.Type == type)
{
// no change
return(point);
}
if (point.Type != GoPointType.EMPTY)
{
GoException.Throw("Should remove the Chess first");
}
point.Type = type;
point.Block = new GoBlock(SIZE, point);
return(point);
}
private List <GoCoord> OnCheckCapture(GoPoint point)
{
List <GoCoord> removedList = new List <GoCoord>();
if (point.UP != null && point.UP.Qi == 0)
{
removedList.AddRange(RemoveBlock(point.UP.Block));
}
if (point.DOWN != null && point.DOWN.Qi == 0)
{
removedList.AddRange(RemoveBlock(point.DOWN.Block));
}
if (point.LEFT != null && point.LEFT.Qi == 0)
{
removedList.AddRange(RemoveBlock(point.LEFT.Block));
}
if (point.RIGHT != null && point.RIGHT.Qi == 0)
{
removedList.AddRange(RemoveBlock(point.RIGHT.Block));
}
return(removedList);
}
public bool PopStep()
{
GoStep step = steps_.Pop();
GoPoint point = GetPoint(step.Coord);
OnRemoveChess(point);
if (step.Removed.Count != 0)
{
GoPointType removedType = GoPointType.EMPTY;
if (step.Type == GoPointType.BLACK)
{
removedType = GoPointType.WHITE;
}
else if (step.Type == GoPointType.WHITE)
{
removedType = GoPointType.BLACK;
}
foreach (GoCoord item in step.Removed)
{
SetupPoint(item, removedType);
}
}
return(false);
}